3+ day, 10+ hour ago   (298+ words) Google has open-sourced Mantis, a stack-agnostic toolkit of security review skills that lets an AI coding agent run the whole vulnerability lifecycle. It finds a suspected flaw, strips the false positives, reproduces the bug inside a sandbox, writes a minimal…...

1+ week, 2+ day ago   (499+ words) Today, OpenAI released GPT-6 Astra. The company calls it its most intelligent and aligned model, and positions it primarily as a computer-use system rather than a chat model. The pitch is that Astra operates software the way a person does,…...

1+ week, 4+ day ago   (370+ words) Yes, Claude Fable 5.1 is generally available as claude-fable-5-1 on the Claude API, Amazon Bedrock, Claude Platform on AWS, Google Cloud, and Microsoft Foundry. Claude Mythos 5.1 is not: it is restricted to vetted US organizations inside Project Glasswing. On Terminal-Bench-Science 0.1, an…...

3+ week, 9+ hour ago   (506+ words) MarkTechPost In this tutorial, we build an in-depth NeMo Guardrails pipeline that demonstrates how layered guardrails can control an LLM-based financial assistant across the full request lifecycle. We combine deterministic PII detection and redaction, LLM-based input and output self-checks, retrieval…...

3+ week, 1+ day ago   (323+ words) Yes, but only on one path. Claude Security is available in public beta for Claude Enterprise customers. There is no separate model add-on; Mythos 5 scans are billed as standard token usage under the existing plan. An admin enables it in…...

1+ mon, 1+ week ago   (383+ words) Agents, MCP integrations, and LLM-powered applications are entering codebases faster than most security programs can track them. Mend.io’s new practitioner guide, ‘Securing AI agents, MCP servers & LLM apps: A practical framework’, targets that gap. It is organized around three…...

1+ mon, 1+ week ago   (214+ words) Not open-sourced or weight. VR-1 is available only to vetted organizations through the Cogent Frontier Access Program, with guardrails, policy controls, and audit logging in place, and participants work directly with Cogent Research on evaluation and deployment in their own…...

1+ mon, 2+ week ago   (967+ words) On July 21, 2026, OpenAI disclosed that its own models breached Hugging Face’s production infrastructure. The models were not attacking a target. They were sitting an exam. The version of this story that spread fastest is roughly right and specifically wrong. The…...

2+ mon, 2+ week ago   (645+ words) A new Cursor study reports that newer coding agents often retrieve known fixes instead of deriving them, inflating popular benchmark scores. Reward hacking means a model earns the reward without doing the intended work. Here the reward is a passing…...

3+ mon, 1+ hour ago   (689+ words) Anthropic has disabled its two most capable models for every customer. The shutdown followed a US government export control directive. The order arrived on June 12, 2026. It named Claude Fable 5 and Claude Mythos 5 specifically. Both models had launched only three days…...